Zend Framework 1.9

Lors de la migration d'une version précédente à Zend Framework 1.9.0 vers une version 1.9, vous devriez prendre note de ce qui suit.

Zend_File_Transfer

MimeType validation

For security reasons we had to turn off the default fallback mechanism of the MimeType, ExcludeMimeType, IsCompressed and IsImage validators. This means, that if the fileInfo or magicMime extensions can not be found, the validation will always fail.

If you are in need of validation by using the HTTP fields which are provided by the user then you can turn on this feature by using the enableHeaderCheck() method.

Note: Security hint
You should note that relying on the HTTP fields, which are provided by your user, is a security risk. They can easily be changed and could allow your user to provide a malcious file.

Example #1 Allow the usage of the HTTP fields

  1. // at initiation
  2. $valid = new Zend_File_Transfer_Adapter_Http(array('headerCheck' => true);
  3.  
  4. // or afterwards
  5. $valid->enableHeaderCheck();

Zend_Filter

Avant la version 1.9, Zend_Filter permettait l'utilisation de la méthode statique get(). Avec la version 1.9 cette méthode a été renommée en filterStatic() afin d'être plus descriptive. L'ancienne méthode get() est marquée comme dépréciée.

Zend_Http_Client

Changement dans le stockage interne des fichiers d'upload

Dans la version 1.9 de Zend Framework, il y a eu un changement dans la manière dont Zend_Http_Client stocke en interne les informations concernant les fichiers ayant été uploadés, affectés grâce à Zend_Http_Client::setFileUpload()

Ce changement a été mis en place de manière à permettre l'envoi de plusieurs fichiers avec le même nom dans le formulaire, en tant que tableau de fichiers. Plus d'informations à ce sujet peuvent être trouvées dans ce » rapport de bug.

Example #2 Stockage interne des informations sur les fichiers uploadés

  1. // Uploade 2 fichiers avec le même nom d'élément de formulaire, en tant que tableau
  2. $client = new Zend_Http_Client();
  3. $client->setFileUpload('file1.txt', 'userfile[]', 'some raw data', 'text/plain');
  4. $client->setFileUpload('file2.txt', 'userfile[]', 'some other data', 'application/octet-stream');
  5.  
  6. // Dans Zend Framework <=1.8, la valeur de l'attribut protégé $client->files est:
  7. // $client->files = array(
  8. //     'userfile[]' => array('file2.txt', 'application/octet-stream', 'some other data')
  9. // );
  10.  
  11. // Dans Zend Framework >=1.9, la valeur de $client->files est:
  12. // $client->files = array(
  13. //     array(
  14. //         'formname' => 'userfile[]',
  15. //         'filename' => 'file1.txt,
  16. //         'ctype'    => 'text/plain',
  17. //         'data'     => 'some raw data'
  18. //     ),
  19. //     array(
  20. //         'formname' => 'userfile[]',
  21. //         'filename' => 'file2.txt',
  22. //         'formname' => 'application/octet-stream',
  23. //         'formname' => 'some other data'
  24. //     )
  25. // );

Comme vous le voyez, ce changement permet l'utilisation du même élément de formulaire avec plusieurs fichiers. Cependant ceci introduit un changement subtile dans l'API interne, il est donc signalé ici.

Deprecation of Zend_Http_Client::_getParametersRecursive()

Starting from version 1.9, the protected method _getParametersRecursive() is no longer used by Zend_Http_Client and is deprecated. Using it will cause an E_NOTICE message to be emitted by PHP.

If you subclass Zend_Http_Client and call this method, you should look into using the Zend_Http_Client::_flattenParametersArray() static method instead.

Again, since this _getParametersRecursive is a protected method, this change will only affect users who subclass Zend_Http_Client.

Zend_Locale

Méthodes dépréciées

Quelques méthodes de traductions spéciales ont été dépréciées car elles dupliquaient un comportement existant. Notez cependant que les anciens appels vont toujours fonctionner, mais une notice utilisateur, qui décrira le nouvel appel, sera émise. Ces méthodes seront effacées en 2.0. Ci-dessous la liste des anciens et nouveaux appels :

Liste des types de mesures
Ancien appel Nouvel appel
getLanguageTranslationList($locale) getTranslationList('language', $locale)
getScriptTranslationList($locale) getTranslationList('script', $locale)
getCountryTranslationList($locale) getTranslationList('territory', $locale, 2)
getTerritoryTranslationList($locale) getTranslationList('territory', $locale, 1)
getLanguageTranslation($value, $locale) getTranslation($value, 'language', $locale)
getScriptTranslation($value, $locale) getTranslation($value, 'script', $locale)
getCountryTranslation($value, $locale) getTranslation($value, 'country', $locale)
getTerritoryTranslation($value, $locale) getTranslation($value, 'territory', $locale)

Zend_View_Helper_Navigation

Prior to the 1.9 release, the menu helper (Zend_View_Helper_Navigation_Menu) did not render sub menus correctly. When the onlyActiveBranch was TRUE and the option renderParents FALSE, nothing would be rendered if the deepest active page was at a depth lower than the minDepth option.

In simpler words; if minDepth was set to 1 and the active page was at one of the first level pages, nothing would be rendered, as the following example shows.

Consider the following container setup:

  1. $container = new Zend_Navigation(array(
  2.     array(
  3.         'label' => 'Home',
  4.         'uri'   => '#'
  5.     ),
  6.     array(
  7.         'label'  => 'Products',
  8.         'uri'    => '#',
  9.         'active' => true,
  10.         'pages'  => array(
  11.             array(
  12.                 'label' => 'Server',
  13.                 'uri'   => '#'
  14.             ),
  15.             array(
  16.                 'label' => 'Studio',
  17.                 'uri'   => '#'
  18.             )
  19.         )
  20.     ),
  21.     array(
  22.         'label' => 'Solutions',
  23.         'uri'   => '#'
  24.     )
  25. ));

The following code is used in a view script:

  1. echo $this->navigation()->menu()->renderMenu($container, array(
  2.     'minDepth'         => 1,
  3.     'onlyActiveBranch' => true,
  4.     'renderParents'    => false
  5. ));

Before release 1.9, the code snippet above would output nothing.

Since release 1.9, the _renderDeepestMenu() method in Zend_View_Helper_Navigation_Menu will accept active pages at one level below minDepth, as long as the page has children.

The same code snippet will now output the following:

  1. <ul class="navigation">
  2.     <li>
  3.         <a href="#">Server</a>
  4.     </li>
  5.     <li>
  6.         <a href="#">Studio</a>
  7.     </li>
  8. </ul>

Security fixes as with 1.9.7

Additionally, users of the 1.9 series may be affected by other changes starting in version 1.9.7. These are all security fixes that also have potential backwards compatibility implications.

Zend_Dojo_View_Helper_Editor

A slight change was made in the 1.9 series to modify the default usage of the Editor dijit to use div tags instead of a textarea tag; the latter usage has » security implications, and usage of div tags is recommended by the Dojo project.

In order to still allow graceful degradation, a new degrade option was added to the view helper; this would allow developers to optionally use a textarea instead. However, this opens applications developed with that usage to XSS vectors. In 1.9.7, we have removed this option. Graceful degradation is still supported, however, via a noscript tag that embeds a textarea. This solution addressess all security concerns.

The takeaway is that if you were using the degrade flag, it will simply be ignored at this time.

Zend_Filter_HtmlEntities

In order to default to a more secure character encoding, Zend_Filter_HtmlEntities now defaults to UTF-8 instead of ISO-8859-1.

Additionally, because the actual mechanism is dealing with character encodings and not character sets, two new methods have been added, setEncoding() and getEncoding(). The previous methods setCharSet() and setCharSet() are now deprecated and proxy to the new methods. Finally, instead of using the protected members directly within the filter() method, these members are retrieved by their explicit accessors. If you were extending the filter in the past, please check your code and unit tests to ensure everything still continues to work.

Zend_Filter_StripTags

Zend_Filter_StripTags contains a flag, commentsAllowed, that, in previous versions, allowed you to optionally whitelist HTML comments in HTML text filtered by the class. However, this opens code enabling the flag to XSS attacks, particularly in Internet Explorer (which allows specifying conditional functionality via HTML comments). Starting in version 1.9.7 (and backported to versions 1.8.5 and 1.7.9), the commentsAllowed flag no longer has any meaning, and all HTML comments, including those containing other HTML tags or nested commments, will be stripped from the final output of the filter.

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